CN215342778U

CN215342778U - Battery package fire prevention cover

Info

Publication number: CN215342778U
Application number: CN202121559689.3U
Authority: CN
Inventors: 杜银涛
Original assignee: Suzhou Wanhe Electronics Co ltd
Current assignee: Suzhou Wanhe Electronics Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-12-28
Anticipated expiration: 2031-07-09

Abstract

The utility model relates to a battery pack fireproof cover which comprises a fireproof cover body, wherein the fireproof cover body is formed by connecting a plurality of fireproof sheets, each fireproof sheet comprises a high silica glass fiber layer and a silica gel layer, the silica gel layers are compounded on two sides of the high strength glass fiber layers, openings of the fireproof sheets on the side surfaces of the fireproof cover body are arranged, adjacent fireproof sheets are connected through Kevlar sewing threads, binding bands are arranged on the upper end surface and the lower end surface of the fireproof cover body, and a plurality of binding buckles matched with the binding bands are arranged on the side surfaces of the fireproof cover body; bandage and tying up the knot and be used for further fixed battery, the material of fire prevention piece itself has high silica glass fiber layer and silica gel layer, and the silica gel layer is compound in the both sides on high strong glass fiber layer, and material characteristic itself says, can effectively prevent battery heat to spread, and 30 minutes flame does not burn through. Can be effectively used as the last barrier after the battery pack is out of control and catches fire.

Description

Battery package fire prevention cover

Technical Field

The utility model relates to the technical field of battery fire prevention, in particular to a battery pack fire prevention cover.

Background

The fire accidents of a plurality of electric automobiles are exposed, the safety problem of the electric automobiles becomes the focus of industrial and even social attention again, and the consumption confidence of the market on new energy automobiles is even influenced to a certain extent. The power battery is used as the most active core part of the electric automobile, the challenge is more and more increased under the pressure of low cost, high density, long endurance, quick charging and the like in recent years, the electrode is made of a combustible material, the lithium battery generates thermal runaway under the conditions of overcharge, short circuit, overheating, puncture or collision and the like, and is easy to ignite and even explode.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fireproof cover of a battery pack, which avoids the problem of thermal runaway of the battery pack within a certain time.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a battery pack fireproof cover which comprises a fireproof cover body, wherein the fireproof cover body is formed by connecting a plurality of fireproof sheets, each fireproof sheet comprises a high silica glass fiber layer and a silica gel layer, the silica gel layers are compounded on two sides of the high silica glass fiber layers, openings of the fireproof sheets on the side surfaces of the fireproof cover body are arranged, adjacent fireproof sheets are connected through Kevlar sewing threads, binding bands are arranged on the upper end surface and the lower end surface of the fireproof cover body, and a plurality of binding buckles matched with the binding bands are arranged on the fireproof sheets on the side surfaces of the fireproof cover body.

Preferably, the binding band and the binding buckle are aramid fiber telescopic bands.

Preferably, the thickness of the high silica glass fiber layer is not less than 3 mm.

Preferably, the content of silicon dioxide (SiO 2) in the silica gel layer is not less than 96%.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses a battery pack fireproof cover which comprises a fireproof cover body, wherein the fireproof cover body is formed by connecting a plurality of fireproof sheets, the fireproof sheets are connected by Kevlar sewing threads, the Kevlar sewing threads have fireproof and high-temperature resistant properties, openings are formed in two side faces of the fireproof cover body and are used for being sleeved on a battery, binding bands are arranged on the upper end face and the lower end face of the fireproof cover body, a plurality of binding buckles matched with the binding bands are arranged on the side face fireproof sheets of the fireproof cover body and are used for further fixing the battery, the fireproof sheets are made of high silica glass fiber layers and silica gel layers, the silica gel layers are compounded on two sides of the high-strength glass fiber layers, and the material can effectively prevent the battery from spreading due to the characteristics of the material, so that the battery cannot be burnt out by flame for 30 minutes. Can be effectively used as the last barrier after the battery pack is out of control and catches fire.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic structural diagram in accordance with a preferred embodiment of the present invention;

fig. 2 is a schematic view of the internal structure of the fire-barrier sheet.

Wherein the reference numerals are as follows:

1. a fire-proof cover body; 2. a high silica glass fiber layer; 3. a silica gel layer; 4. binding bands; 5. and (6) binding buckles.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1, the embodiment of the utility model includes a fireproof cover body 1, the fireproof cover body 1 is formed by connecting a plurality of fireproof sheets, the fireproof cover body 1 is generally a cuboid structure, and the size of the fireproof cover body can be adjusted and customized. Make up through fire prevention high temperature resistant Kevlar sewing thread between the adjacent fire prevention piece, the both sides face opening setting of fire prevention cover body 1, the opening setting of both sides is convenient for the cover to be established on the battery package, the both ends of the upper and lower terminal surface of fire prevention cover body 1 respectively are connected with bandage 4, the both sides face of fire prevention cover body 1 is provided with a plurality of ties up and detains 5, a plurality of ties up and detain 5 from last to equal parallel arrangement down, bandage 4 is fixed when using and is tied up and detain 5, can select suitable tying up according to the size of battery and detain 5. The binding band 4 and the binding buckle 5 are aramid fiber telescopic belts, and the aramid fiber telescopic belts have the characteristics of high strength, strong heat resistance, low shrinkage rate, stable size and the like, and are more suitable for the product disclosed by the utility model.

Referring to fig. 2, the fireproof sheet comprises a high silica glass fiber layer 2 and a silica gel layer 3, the silica gel layer 3 is provided with at least two layers and is compounded on two sides of the high-strength glass fiber layer 2, the content of silica in the silica gel layer 3 is not less than 96%, the thickness of the high silica glass fiber layer 2 is not less than 3mm, the high silica fiber can keep good strength and elasticity for a long time at 1000 ℃, the high silica fiber has low thermal conductivity and good resistance to high thermal shock, and through testing, the softening point of the product in the embodiment is close to 1700 ℃, the product can be used for a long time at 900 ℃, the product works for 10 minutes at 1450 ℃, and the product works for 15S at 1600 ℃ to guarantee a good state. Can be effectively used as the last barrier after the battery pack is out of control and catches fire. The content of silicon dioxide (SiO 2) in the silica gel layer is not less than 96%, so that the elasticity is ensured.

When the battery pack is used specifically, the fireproof cover with a proper size is selected, then the battery pack is covered with the fireproof cover, and then the battery pack is fixed by the binding bands 4 and the binding buckles 5. Effectively meets the characteristics of heat insulation, flame retardance, no burn-through and the like of products

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a battery package fire prevention cover, its characterized in that, includes the fire prevention cover body, the fire prevention cover body is formed by connecting a plurality of fire prevention pieces, the fire prevention piece includes high silica glass fiber layer and silica gel layer, the silica gel layer is compound the both sides of high silica glass fiber layer, the side opening setting of fire prevention cover body is connected through the kevlar sewing thread between the adjacent fire prevention piece, all be provided with the bandage on the upper and lower terminal surface of fire prevention cover body, be provided with on the side of fire prevention cover body a plurality of with bandage assorted ties up and detain.

2. The battery pack fire-resistant cover according to claim 1, wherein: the bandage and the binding buckle are aramid fiber telescopic belts.

3. The battery pack fire-resistant cover according to claim 1, wherein: the thickness of the high silica glass fiber layer is not less than 3 mm.